Kellerová E, Ruttkay-Nedecký I
Act Nerv Super (Praha). 1978 Oct;20(3):186-94.
A plethymographic study of the effect of a weak indifferent light or sound stimulus and of a physically identical light stimulus with signal meaning on vasomotor activity in the acral skin zone of man has shown that during stimulus presentation there was a significant rise in the percent of occurrence of vasmotor waves corresponding to the criteria for the vasomotor orienting response (VOR). VOR is elicited significantly more often by stimuli with signal meaning than by physically identical indifferent stimuli. After the acute extinction or VOR disinhibition followed in all cases, and after 40--60 repeated stimuli the occurrence of VOR was still significant. Repeated stimuli had a significant effect on the course of the plethysmographic curve, especially on the component of waves of third order, changing the frequency spectrum and time contingency of waves.
一项关于微弱中性光或声音刺激以及具有信号意义的物理上相同的光刺激对人体手部皮肤区域血管运动活动影响的体积描记法研究表明，在呈现刺激期间，对应血管运动定向反应（VOR）标准的血管运动波出现百分比显著上升。具有信号意义的刺激比物理上相同的中性刺激更频繁地引发VOR。在所有情况下，急性消退或VOR去抑制随后发生，并且在40 - 60次重复刺激后，VOR的出现仍然显著。重复刺激对体积描记曲线的进程有显著影响，特别是对三阶波成分，改变了波的频谱和时间相关性。
